{
  "manageEntity": {
    "action": "Save",
    "entityId": "95979067",
    "entityType": "Track",
    "nonce": "0x1b2157ecface1931597ed87ca89ac421e604ef4eb4c6ad68a9f40520ea236662",
    "signature": "0xc57254718da3fbd61c0eeb6e9008ad97988370828b4f4aa839dbbb1801b69c9d3faec7edcc3d654a7692e592fd95e5923b18a5f93585a25db0cb4b191e76392f1c",
    "signer": "0xC35123bF05ca0B3A7B333c53E47bcd9f9DA864d4",
    "userId": "33896318"
  }
}